src/ui/app_list/views/folder_header_view.cc

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ui/app_list/views/folder_header_view.h"
   6
   7 #include "base/strings/utf_string_conversions.h"
   8 #include "grit/ui_resources.h"
   9 #include "grit/ui_strings.h"
  10 #include "ui/app_list/app_list_constants.h"
  11 #include "ui/app_list/app_list_folder_item.h"
  12 #include "ui/app_list/views/app_list_folder_view.h"
  13 #include "ui/base/resource/resource_bundle.h"
  14 #include "ui/gfx/canvas.h"
  15 #include "ui/views/controls/button/image_button.h"
  16 #include "ui/views/controls/textfield/textfield.h"
  17
  18 namespace app_list {
  19
  20 namespace {
  21
  22 const int kPreferredWidth = 360;
  23 const int kPreferredHeight = 48;
  24 const int kIconDimension = 32;
  25 const int kPadding = 14;
  26 const int kFolderNameWidth = 150;
  27 const int kFolderNameHeight = 30;
  28 const int kBottomSeparatorWidth = 380;
  29 const int kBottomSeparatorHeight = 1;
  30
  31 const SkColor kHintTextColor = SkColorSetRGB(0xA0, 0xA0, 0xA0);
  32
  33 }  // namespace
  34
  35 class FolderHeaderView::FolderNameView : public views::Textfield {
  36  public:
  37   FolderNameView() {
  38     set_border(views::Border::CreateEmptyBorder(1, 1, 1, 1));
  39   }
  40
  41   virtual ~FolderNameView() {
  42   }
  43
  44   // Overridden from views::View:
  45   virtual gfx::Size GetPreferredSize() OVERRIDE {
  46     return gfx::Size(kFolderNameWidth, kFolderNameHeight);
  47   }
  48
  49   virtual void OnPaintFocusBorder(gfx::Canvas* canvas) OVERRIDE {
  50     const SkColor kFocusBorderColor = SkColorSetRGB(64, 128, 250);
  51     if (HasFocus() && focusable()) {
  52       gfx::Rect rect = GetLocalBounds();
  53       rect.Inset(0, 0, 1, 1);
  54       canvas->DrawRect(rect, kFocusBorderColor);
  55     }
  56   }
  57
  58  private:
  59   DISALLOW_COPY_AND_ASSIGN(FolderNameView);
  60 };
  61
  62 FolderHeaderView::FolderHeaderView(FolderHeaderViewDelegate* delegate)
  63     : folder_item_(NULL),
  64       back_button_(new views::ImageButton(this)),
  65       folder_name_view_(new FolderNameView),
  66       delegate_(delegate) {
  67   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
  68   back_button_->SetImage(views::ImageButton::STATE_NORMAL,
  69       rb.GetImageSkiaNamed(IDR_APP_LIST_FOLDER_BACK_NORMAL));
  70   back_button_->SetImageAlignment(views::ImageButton::ALIGN_CENTER,
  71       views::ImageButton::ALIGN_MIDDLE);
  72   AddChildView(back_button_);
  73
  74   folder_name_view_->SetFont(rb.GetFont(ui::ResourceBundle::MediumFont));
  75   folder_name_view_->set_placeholder_text_color(kHintTextColor);
  76   folder_name_view_->set_placeholder_text(
  77       rb.GetLocalizedString(IDS_APP_LIST_FOLDER_NAME_PLACEHOLDER));
  78   folder_name_view_->RemoveBorder();
  79   folder_name_view_->SetBackgroundColor(kContentsBackgroundColor);
  80   folder_name_view_->SetController(this);
  81   AddChildView(folder_name_view_);
  82 }
  83
  84 FolderHeaderView::~FolderHeaderView() {
  85   if (folder_item_)
  86     folder_item_->RemoveObserver(this);
  87 }
  88
  89 void FolderHeaderView::SetFolderItem(AppListFolderItem* folder_item) {
  90   if (folder_item_)
  91     folder_item_->RemoveObserver(this);
  92
  93   folder_item_ = folder_item;
  94   if (!folder_item_)
  95     return;
  96   folder_item_->AddObserver(this);
  97
  98   Update();
  99 }
 100
 101 void FolderHeaderView::Update() {
 102   if (!folder_item_)
 103     return;
 104
 105   folder_name_view_->SetText(UTF8ToUTF16(folder_item_->title()));
 106 }
 107
 108 gfx::Size FolderHeaderView::GetPreferredSize() {
 109   return gfx::Size(kPreferredWidth, kPreferredHeight);
 110 }
 111
 112 void FolderHeaderView::Layout() {
 113   gfx::Rect rect(GetContentsBounds());
 114   if (rect.IsEmpty())
 115     return;
 116
 117   gfx::Rect back_bounds(rect);
 118   back_bounds.set_width(kIconDimension + 2 * kPadding);
 119   back_button_->SetBoundsRect(back_bounds);
 120
 121   gfx::Rect text_bounds(rect);
 122   int text_width = folder_name_view_->GetPreferredSize().width();
 123   text_bounds.set_x(back_bounds.x() + (rect.width() - text_width) / 2);
 124   text_bounds.set_width(text_width);
 125   text_bounds.ClampToCenteredSize(gfx::Size(text_bounds.width(),
 126       folder_name_view_->GetPreferredSize().height()));
 127   folder_name_view_->SetBoundsRect(text_bounds);
 128 }
 129
 130 void FolderHeaderView::OnPaint(gfx::Canvas* canvas) {
 131   views::View::OnPaint(canvas);
 132
 133   gfx::Rect rect(GetContentsBounds());
 134   if (rect.IsEmpty())
 135     return;
 136
 137   // Draw bottom separator line.
 138   rect.set_x((rect.width() - kBottomSeparatorWidth) / 2 + rect.x());
 139   rect.set_y(rect.y() + rect.height() - kBottomSeparatorHeight);
 140   rect.set_width(kBottomSeparatorWidth);
 141   rect.set_height(kBottomSeparatorHeight);
 142   canvas->FillRect(rect, kTopSeparatorColor);
 143 }
 144
 145 void FolderHeaderView::ContentsChanged(views::Textfield* sender,
 146                                        const base::string16& new_contents) {
 147   // Temporarily remove from observer to ignore data change caused by us.
 148   if (!folder_item_)
 149     return;
 150
 151   folder_item_->RemoveObserver(this);
 152   std::string name = UTF16ToUTF8(folder_name_view_->text());
 153   folder_item_->SetTitleAndFullName(name, name);
 154   folder_item_->AddObserver(this);
 155 }
 156
 157 void FolderHeaderView::ButtonPressed(views::Button* sender,
 158                                      const ui::Event& event) {
 159   delegate_->NavigateBack(folder_item_, event);
 160 }
 161
 162 void FolderHeaderView::ItemIconChanged() {
 163 }
 164
 165 void FolderHeaderView::ItemTitleChanged() {
 166   Update();
 167 }
 168
 169 void FolderHeaderView::ItemHighlightedChanged() {
 170 }
 171
 172 void FolderHeaderView::ItemIsInstallingChanged() {
 173 }
 174
 175 void FolderHeaderView::ItemPercentDownloadedChanged() {
 176 }
 177
 178 }  // namespace app_list
 179